Go Player Ratings

JAKOAbout ratings

Yun Jongseob

Yun Jongseob (윤종섭) has a rating of 896, ranked 340 of 340 in korea play. Their highest rating so far is 1525 (February 26, 1974).

Yun Jongseob윤종섭尹鍾燮
Rating896
Rank340
1-year change↓7
Peak rating1525
Last 10185-494(5 by default, 4 lost by default)
2026 record
0-8
Record since 1954
185-494
Win rate
.273

The rating is calculated from published game results. It does not include any adjustment for playing Black.

Korea ratingsFind a player

Rating history — korea

8 gamesHigh 901Low 896
19 gamesHigh 922Low 896
31 gamesHigh 925Low 879
670 gamesHigh 1525Low 879

The “All” view starts at 1970; earlier years are used only to warm up the calculation and are not shown.

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
August 5, 2026Park ByeongkyuThe Merriden Open 시니어조 예선 1회전　as White↓1
July 23, 2026Choi Kyubyeong蔚山市長杯 全国囲碁大会 プロシニア最強戦 프로 시니어 최강전 B그룹 예선 1회전　as Black↓1
July 17, 2026Lee SanghunSG杯 韓国日報 名人戦 Preliminary Round 1　as Black±0
April 20, 2026Park ByeongkyuJiji Auction杯 紳士・淑女・新鋭連勝対抗戦 신사 숙녀 신예 연승대항전 예선 2회전　as White↓1
February 20, 2026Lee JungwooSopalkosanol最高棋士決定戦 예선 1회차　as Black±0
January 21, 2026Kim Youngsam大舟杯 シニア最強者戦 예선 1회차　as Black↓1
January 13, 2026Heo Seohyun블리츠 Open 프로 예선 2회차　as White±0
January 5, 2026Kim Dan-yuGS Caltex杯 プロ棋戦 Preliminary Round 1　as White↓2
August 11, 2025Choi KyubyeongThe Merriden Open 프로 남자부 예선 1회차　as Black↓2
August 5, 2025Han Cheolkyun蔚山市長杯 全国囲碁大会 プロシニア最強戦 프로시니어 예선 2회차　as Black↓4
June 17, 2025Cho Jong-sinSG杯 韓国日報 名人戦 Preliminary Round 1　as Black±0
May 13, 2025An ChoyeongJiji Auction杯 紳士・淑女・新鋭連勝対抗戦 신사 대 숙녀 연승대항전 예선 1회전　as White↓1
February 3, 2025Han SanghoonHana Bank囲碁SUPER MATCH 예선 1회차　Colors unknown—
January 22, 2025Park Sohyun大舟杯 シニア最強者戦 예선 1회차　as White↓2
January 7, 2025Lee Sang-binGS Caltex杯 プロ棋戦 예선 2회차　as Black±0
January 6, 2025Kim KiwonGS Caltex杯 プロ棋戦 예선 1회차　Colors unknown—
July 23, 2024Moon MinjongSG杯 韓国日報 名人戦 Preliminary Round 2　as White±0
May 21, 2024Yang KeonJiji Auction杯 紳士・淑女・新鋭連勝対抗戦 신사 대 숙녀 연승대항전 예선 1회전　as Black↓1
January 16, 2024Park Seunsoo大舟杯 シニア最強者戦 Preliminary Round 1　as White↓7
December 27, 2023Kim BeomseoSopalkosanol最高棋士決定戦 1차 예선 1회차　as Black±0

Tournament names are shown in Korean, as the Korea Baduk Association writes them, unless an English name is known.

Round names are translated from the Korea Baduk Association's wording; those we cannot translate are left in Korean.

Record by year

Counted by calendar year, January to December, from Korea Baduk Association games only (default wins and losses are included; jigo and no-result games are not). Games from 1954 onward; international tournaments are not included.

YearRecordWin rate
20260-8.000
20251-7.125
20240-3.000
20233-7.300
20221-6.143
20210-22.000
20202-28.067
20190-4.000
20180-4.000
20170-2.000
20160-3.000
20150-9.000
20141-11.083
20131-10.091
20121-11.083
20111-10.091
20102-11.154
20090-9.000
20082-10.167
20072-12.143
20061-8.111
20050-11.000
20043-8.273
20033-8.273
20028-9.471
20015-9.357
20002-6.250
19992-8.200
19981-8.111
19973-10.231
19962-9.182
19957-14.333
19946-13.316
19936-11.353
19926-12.333
19918-11.421
19908-11.421
198911-11.500
19887-12.368
19876-11.353
198615-12.556
19854-9.308
19846-11.353
198313-11.542
19820-9.000
19810-6.000
19809-8.529
19793-10.231
19787-5.583
19773-9.250
19766-8.429
19752-4.333
19744-4.500
19731-1.500

Calculated from games played between 1954 and 2026 (as of September 22, 2026).